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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
may have
Grammar usage guide and real-world examplesUSAGE SUMMARY
"may have" is correct and usable in written English.
It can be used to indicate possibility or uncertainty. For example: The rain may have washed away the evidence.
✓ Grammatically correct
News & Media
Science
Wiki
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
This may have backfired.
News & Media
Moyer may have misspoke.
News & Media
We may have already.
News & Media
It already may have.
News & Media
He may have one.
News & Media
"I may have authority.
News & Media
He may have.
News & Media
That may have advantages.
News & Media
He may have to.
News & Media
Luhrmann may have miscalculated.
News & Media
Dispersants may have worked.
News & Media
Expert writing Tips
Best practice
When writing academically or professionally, consider whether a more precise term or phrasing would be more appropriate if the degree of uncertainty is known.
Common error
Avoid using "may have" interchangeably with "might have" or "could have" without considering the subtle differences in nuance. "Might have" often implies a slightly lower probability than "may have", while "could have" also suggests possibility but can also refer to ability.
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "may have" functions as a modal verb construction used to express epistemic possibility in the past. It indicates that something is possible or likely to have occurred, but without certainty. Ludwig AI confirms this usage is correct and common.
Frequent in
News & Media
52%
Wiki
15%
Science
13%
Less common in
Formal & Business
6%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "may have" is a versatile modal construction used to express possibility or uncertainty about past events. Ludwig AI confirms its correct usage in written English. It's grammatically sound and widely accepted across diverse contexts, especially in News & Media. Alternatives like "might have" or "could have" offer subtle differences in nuance. When employing "may have", ensure its usage aligns with expressing epistemic possibility rather than ability or other modal functions.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
might have
Similar in meaning but uses "might" instead of "may", indicating a slightly weaker possibility.
could have
Indicates a possibility or potential in the past, similar to "may have".
it is possible that
Expresses possibility more explicitly, using a full clause instead of a modal verb construction.
it is not impossible that
Expresses possibility by negating impossibility, suggesting something is at least potentially true.
it is likely that
Suggests a higher degree of probability compared to "may have".
there is a chance that
Highlights the existence of a possibility, without specifying how likely it is.
possibly
A single-word adverb expressing possibility.
it's conceivable that
Uses a full clause to express that something is imaginable or possible.
conceivably
Indicates something is within the realm of possibility, although perhaps not very likely.
perhaps
A simple adverb expressing uncertainty or possibility.
FAQs
When is it appropriate to use "may have" in a sentence?
"May have" is appropriate when you want to express a possibility or uncertainty about a past event or action. For instance, "The rain "may have washed away the evidence"."
What are some alternatives to using "may have"?
Depending on the context, you can use alternatives like "might have", "could have", or "it is possible that".
Is there a difference between "may have" and "might have"?
While both express possibility, "might have" often suggests a slightly lower probability or a more remote possibility compared to "may have".
Can "may have" also indicate ability in the past?
No, "may have" indicates a possibility regarding a past event. If you want to express ability in the past, use "could have" instead. For example, "He "could have won the race"" (ability), versus "He "may have won the race"" (possibility).
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested